Improving Dietary Self-Efficacy: A Case Study of the 'Reaksi' Application in a 15-18 Year-Old Adolescent Girl at SMK PGRI 3 Malang
DOI:
https://doi.org/10.57125/FEM.2025.03.30.02Keywords:
Adolescent health, Self-efficacy, Healthy eating, Technology-based intervention, ApplicationAbstract
Introduction: Dietary self efficacy is crucial for adolescents, directly influencing their ability to adopt healthy eating habits. The "Reaksi" application provides educational resources aimed at improving self-efficacy in this demographic. This case report explores the impact of this application on self-efficacy among a specific group of adolescent girls at SMK PGRI 3 Malang.
Case Presentation A total of 69 10th-grade girls were selected through proportional random sampling at SMK PGRI 3 Malang. Data were collected in May 2024 using a validated Self-Efficacy to Regulate Eating Habits Questionnaire. Prior to the intervention, 43% of respondents had low self-efficacy. After using the "Reaksi" app, 67% showed increased dietary self-efficacy. The Wilcoxon test confirmed the results were statistically significant (p < 0.05).
Conclusion: The findings indicate that the "Reaksi" app effectively enhances dietary self-efficacy in adolescent girls, demonstrating the potential of technology-based interventions in promoting healthy eating habits.
References
Badan Pusat Statistik. Population Data of Indonesia [Internet]. 2023 [cited 2025 Feb 6]. Available from: https://www.bps.go.id
World Health Organization. Adolescent Health and Development [Internet]. 2020 [cited 2025 Feb 6]. Available from: https://www.who.int
Ministry of Health Republic of Indonesia. Adolescent Nutrition in Indonesia. 2022.
Sukartini T, Rahayu S. Nutritional Status of Adolescent Girls at SMK PGRI 3 Malang. Malang Public Health Journal. 2023;15(2):45-53.
Chandra V, Nugraheni S. Anemia among adolescents in Southeast Asia: A public health concern. Southeast Asian J Trop Med Public Health. 2021;52(3):337-48.
Food and Agriculture Organization. Southeast Asia Facing Triple Burden of Malnutrition [Internet]. 2021 [cited 2025 Feb 6]. Available from: http://www.fao.org
Smith J, Roberts P. Limitations in current digital health interventions for adolescents: A systematic review. Int J Adolesc Health. 2020;14(1):112-21.
Becker S, Lee H. Personalized digital health for adolescents: Bridging the gap between generalized and tailored interventions. J Digit Health. 2019;7(4):256-65.
"Reaksi" App Development Team. The role of digital health apps in improving adolescent nutrition. Malang: Reaksi Project; 2023.
Schwarzer R. Self-efficacy in the adoption and maintenance of health behaviors: Theoretical approaches and a new model. In: Bandura A. Self-efficacy: The exercise of control. New York: Freeman; 1997.
Bandura A. Social cognitive theory of self-regulation. Organ Behav Hum Decis Process. 1991;50(2):248-87.
Campbell DT, Stanley JC. Experimental and quasi-experimental designs for research. Boston: Houghton Mifflin Company; 1963.
Creswell JW. Research design: qualitative, quantitative, and mixed methods approaches. 4th ed. Thousand Oaks, CA: Sage Publications; 2014.
Kahn M, Karr C, O’Brien M. The role of iron in adolescent health: A review of current literature. Nutrients. 2022;14(3):575.
Michou M, Andreou E, Theodorou M. Nutritional knowledge and dietary habits of adolescents in the Mediterranean region. Nutrients. 2023;15(4):878.
Wang Y, Kuo K, Lee Y. The effectiveness of mobile health applications for dietary knowledge and health behavior improvement in adolescents. J Adolesc Health. 2023;62(4):430-7.
Vasilenko SA, Piper ME, Lanza ST. The role of nutrition knowledge in promoting healthy dietary behaviors among adolescents. J Nutr Educ Behav. 2023;55(2):153-60.
Tavares LF, de Almeida MDV, Barros M, et al. Impact of nutrition education interventions on adolescent self-efficacy for healthy eating: A systematic review. Nutr Rev. 2024;82(1):30-45.
Bandura A. Self-efficacy: The exercise of control. New York: W.H. Freeman; 1997.
Ajzen I. The theory of planned behavior. Organ Behav Hum Decis Process. 1991;50(2):179-211.
Erikson EH. Identity: Youth and crisis. New York: W.W. Norton & Company; 1968.
Ghanim H, Alkazemi D. The impact of nutrition education on the self-efficacy of adolescents in dietary practices. Nutrients. 2021;13(2):508.
Pew Research Center. Teens, Social Media & Technology 2018 [Internet]. Available from: https://www.pewinternet.org/2018/05/31/teens-social-media-technology-2018/.
Common Sense Media. The Common Sense Census: Media Use by Tweens and Teens. 2019 [Internet]. Available from: https://www.commonsensemedia.org/research/the-common-sense-census-media-use-by-tweens-and-teens-2019.
Galloway L, Smith E, Blackwell L, et al. Mobile health applications and their impact on adolescent nutritional awareness and eating habits: A randomized controlled trial. J Nutr Educ Behav. 2023;55(3):220-30.
Larson E, Brown S, Perkins M, et al. The role of interactive digital tools in changing adolescent dietary behavior: A systematic review. Am J Public Health. 2024;114(1):99-110.
Talsma E, Worsley A, de Groot M. The relationship between nutrition knowledge and dietary intake in adolescents: A systematic review. Nutrients. 2019;11(6):1331.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2025 authors
This work is licensed under a Creative Commons Attribution 4.0 International License.
